diff options
Diffstat (limited to 'fs/ocfs2/ioctl.c')
| -rw-r--r-- | fs/ocfs2/ioctl.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index a1a1bfd652c..d96f7f81d8d 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -864,7 +864,7 @@ int ocfs2_info_handle(struct inode *inode, struct ocfs2_info *info, if (status) break; - reqp = (struct ocfs2_info_request *)(unsigned long)req_addr; + reqp = (struct ocfs2_info_request __user *)(unsigned long)req_addr; if (!reqp) { status = -EINVAL; goto bail; @@ -888,9 +888,11 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) struct ocfs2_space_resv sr; struct ocfs2_new_group_input input; struct reflink_arguments args; - const char *old_path, *new_path; + const char __user *old_path; + const char __user *new_path; bool preserve; struct ocfs2_info info; + void __user *argp = (void __user *)arg; switch (cmd) { case OCFS2_IOC_GETFLAGS: @@ -937,17 +939,15 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return ocfs2_group_add(inode, &input); case OCFS2_IOC_REFLINK: - if (copy_from_user(&args, (struct reflink_arguments *)arg, - sizeof(args))) + if (copy_from_user(&args, argp, sizeof(args))) return -EFAULT; - old_path = (const char *)(unsigned long)args.old_path; - new_path = (const char *)(unsigned long)args.new_path; + old_path = (const char __user *)(unsigned long)args.old_path; + new_path = (const char __user *)(unsigned long)args.new_path; preserve = (args.preserve != 0); return ocfs2_reflink_ioctl(inode, old_path, new_path, preserve); case OCFS2_IOC_INFO: - if (copy_from_user(&info, (struct ocfs2_info __user *)arg, - sizeof(struct ocfs2_info))) + if (copy_from_user(&info, argp, sizeof(struct ocfs2_info))) return -EFAULT; return ocfs2_info_handle(inode, &info, 0); @@ -960,22 +960,20 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (!capable(CAP_SYS_ADMIN)) return -EPERM; - if (copy_from_user(&range, (struct fstrim_range *)arg, - sizeof(range))) + if (copy_from_user(&range, argp, sizeof(range))) return -EFAULT; ret = ocfs2_trim_fs(sb, &range); if (ret < 0) return ret; - if (copy_to_user((struct fstrim_range *)arg, &range, - sizeof(range))) + if (copy_to_user(argp, &range, sizeof(range))) return -EFAULT; return 0; } case OCFS2_IOC_MOVE_EXT: - return ocfs2_ioctl_move_extents(filp, (void __user *)arg); + return ocfs2_ioctl_move_extents(filp, argp); default: return -ENOTTY; } @@ -988,6 +986,7 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) struct reflink_arguments args; struct inode *inode = file->f_path.dentry->d_inode; struct ocfs2_info info; + void __user *argp = (void __user *)arg; switch (cmd) { case OCFS2_IOC32_GETFLAGS: @@ -1006,16 +1005,14 @@ long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg) case FITRIM: break; case OCFS2_IOC_REFLINK: - if (copy_from_user(&args, (struct reflink_arguments *)arg, - sizeof(args))) + if (copy_from_user(&args, argp, sizeof(args))) return -EFAULT; preserve = (args.preserve != 0); return ocfs2_reflink_ioctl(inode, compat_ptr(args.old_path), compat_ptr(args.new_path), preserve); case OCFS2_IOC_INFO: - if (copy_from_user(&info, (struct ocfs2_info __user *)arg, - sizeof(struct ocfs2_info))) + if (copy_from_user(&info, argp, sizeof(struct ocfs2_info))) return -EFAULT; return ocfs2_info_handle(inode, &info, 1); |